Granted Patent B1

US 9,245,562 · App. 14/673,748 · Granted Jan 26, 2016

Abstract

Claims (89)

1. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion comprises a first magnetic material, the first portion having a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion comprises a second magnetic material that is different from the first magnetic material, the second portion being spaced apart from the ABS,

wherein the first portion has a first beveled side, a first end and a second end, the first beveled side extending between the first end and the second end, the first end being proximate the ABS,

wherein the second portion has a second beveled side, a third end and a fourth end, the second portion extending between the third end and the fourth end, and the third end being proximate the second end of the first portion, and

wherein the first beveled side and the second beveled side form a first angle and a second angle, respectively, with respect to a plane perpendicular to the ABS, and the first angle and the second angle are substantially the same.

2. The magnetic recording head of claim 1 , wherein the first magnetic material has a first magnetic moment that is greater than a second magnetic moment of the second magnetic material.

3. The magnetic recording head of claim 1 , wherein the first magnetic material has a first magnetic stress that is greater than a second magnetic stress of the second magnetic material.

4. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion comprises a first magnetic material, the first portion having a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion comprises a second magnetic material that is different from the first magnetic material, the second portion being spaced apart from the ABS,

wherein the main pole further comprises a third portion, where the second portion and the third portion are each located at one of the trailing side or the leading side of the main pole, and

wherein the third portion comprises a third magnetic material that is different from the first magnetic material, the third portion being spaced apart from the ABS.

5. The magnetic recording head of claim 4 , wherein the third magnetic material is different from that of the second magnetic material.

6. The magnetic recording head of claim 4 , wherein the third magnetic material is substantially the same as that of the second magnetic material.

7. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion comprises a first magnetic material, the first portion having a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion comprises a second magnetic material that is different from the first magnetic material, the second portion being spaced apart from the ABS,

wherein the first portion has a first beveled side, a first end and a second end, the first beveled side extending between the first end and the second end, the first end being proximate the ABS,

wherein the second portion has a second beveled side, a third end and a fourth end, the second portion extending between the third end and the fourth end, and the third end being proximate the second end of the first portion, and

wherein the first beveled side and the second beveled side form a first angle and a second angle, respectively, with respect to a plane perpendicular to the ABS, and the first angle and the second angle are different.

8. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion comprises a first magnetic material, the first portion having a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion comprises a second magnetic material that is different from the first magnetic material, the second portion being spaced apart from the ABS,

wherein the first portion comprises a first magnetic alloy comprising the first magnetic material;

wherein the second portion comprises a second magnetic alloy comprising the second magnetic material; and

wherein the first magnetic alloy and the second magnetic alloy each comprise an alloy selected from the group consisting of CoFe, FeNi, CoNiFe, and combinations thereof, wherein the second magnetic material of the second magnetic alloy is different from the first magnetic material of the first magnetic alloy.

9. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion, a magnetic property of the first portion being different from a magnetic property of the second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion has a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion is spaced apart from the ABS,

wherein the first portion has a first beveled side, a first end and a second end, the first beveled side extending between the first end and the second end, the first end being proximate the ABS,

wherein the second portion has a second beveled side, a third end and a fourth end, the second portion extending between the third end and the fourth end, and the third end being proximate the second end of the first portion, and

wherein the first beveled side and the second beveled side form a first angle and a second angle, respectively, with respect to a plane perpendicular to the ABS, and the first angle and the second angle are substantially the same.

10. The magnetic recording head of claim 9 , wherein the first portion has a first magnetic moment that is greater than a second magnetic moment of the second portion.

11. The magnetic recording head of claim 9 , wherein the first portion has a first magnetic stress that is greater than a second magnetic stress of the second portion.

12. The magnetic recording head of claim 9 , wherein the first portion and the second portion comprise different magnetic materials.

13. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion, a magnetic property of the first portion being different from a magnetic property of the second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion has a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion is spaced apart from the ABS,

wherein the main pole further comprises a third portion, wherein the second portion and the third portion are each located at one of the trailing side or the leading side of the main pole, and

wherein a magnetic property of the third portion is different from that of the first portion, the third portion being spaced apart from the ABS.

14. The magnetic recording head of claim 13 , wherein the magnetic property of the third portion is different from that of the second portion.

15. The magnetic recording head of claim 13 , wherein the magnetic property of the third portion is substantially the same as that of the second portion.

16. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion, a magnetic property of the first portion being different from a magnetic property of the second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion has a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion is spaced apart from the ABS,

wherein the first portion has a first beveled side, a first end and a second end, the first beveled side extending between the first end and the second end, the first end being proximate the ABS,

wherein the second portion has a second beveled side, a third end and a fourth end, the second portion extending between the third end and the fourth end, and the third end being proximate the second end of the first portion, and

wherein the first beveled side and the second beveled side form a first angle and a second angle, respectively, with respect to a plane perpendicular to the ABS, and the first angle and the second angle are different.

17. The magnetic recording head of claim 16 ,

wherein the first angle is greater than the second angle.

18. A magnetic recording head comprising:

a main pole comprising a first portion and a second portion, a magnetic property of the first portion being different from a magnetic property of the second portion; and

at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion has a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion is spaced apart from the ABS,

wherein the first portion comprises a first magnetic alloy comprising a first magnetic material;

wherein the second portion comprises a second magnetic alloy comprising a second magnetic material; and

wherein the first magnetic alloy and the second magnetic alloy each comprises an alloy selected from the group consisting of CoFe, FeNi, CoNiFe, and combinations thereof, wherein the second magnetic material of the second magnetic alloy is different from the first magnetic material of the first magnetic alloy.

19. A method of fabricating a magnetic recording head, comprising:

forming a main pole comprising a first portion and a second portion; and

forming at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion comprises a first magnetic material, the first portion having a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion comprises a second magnetic material that is different from the first material, the second portion being spaced apart from the ABS,

wherein the first portion has a first beveled side, a first end and a second end, the first beveled side extending between the first end and the second end, the first end being proximate the ABS,

wherein the second portion has a second beveled side, a third end and a fourth end, the second portion extending between the third end and the fourth end, and the third end being proximate the second end of the first portion, and

wherein the first beveled side and the second beveled side form a first angle and a second angle, respectively, with respect to a plane perpendicular to the ABS, and the first angle and the second angle are substantially the same.

20. A method of fabricating a magnetic recording head, comprising:

forming a main pole comprising a first portion and a second portion, a magnetic property of the first portion being different from a magnetic property of the second portion; and

forming at least one of a trailing shield along a trailing side of the main pole or a leading shield along a leading side of the main pole,

wherein the first portion has a first side forming at least a portion of an air bearing surface (ABS) of the main pole,

wherein the second portion is spaced apart from the ABS,

wherein the first portion has a first beveled side, a first end and a second end, the first beveled side extending between the first end and the second end, the first end being proximate the ABS,

wherein the second portion has a second beveled side, a third end and a fourth end, the second portion extending between the third end and the fourth end, and the third end being proximate the second end of the first portion, and

wherein the first beveled side and the second beveled side form a first angle and a second angle, respectively, with respect to a plane perpendicular to the ABS, and the first angle and the second angle are substantially the same.

Assignments (9)